The Indian class system began to change in 1500 BC - 500 BC
<span>Objects do not cease to exist when they are out of view. this concept is referred to as </span>object permanence.
Electrons move in elliptical orbits around the nucleus of an atom. - False. They move in a random manner around the nucleus of an atom
The energy levels of all atoms are quantized. - True. Each energy level has a permissible energy associated with it.
Atoms can lose energy by emitting a photon. - True. When an electron moves from a higher energy level to a lower one, it loses energy and this is emitted as a photon of light.
Electron states are described by orbits, which indicate exactly where an electron is located in an atom. - False. One can not tell exactly where an electron is located at any given time.
Energy travels through space in the form of electromagnetic radiation.- True.
Answer: Aggregate
Explanation: All these people who found themselves in the same place because of a certain occasion, and at the same time of course, but in that case, these people are most likely to see each other for the first time, or if not for the first time then they may have seen each other earlier in the passage, but there is no no connection between them.The only connection is that they are in the same place at the same time. It is an aggregate, therefore not a group of people, because all these people are caught by the music playing by these two musicians, so they stopped to hear them but are not connected to each other. Same as in a restaurant or market.
